WO2014136752A1 - Composition de peinture anticorrosion, revêtement anticorrosion et procédé destiné à empêcher la corrosion d'un matériau de base - Google Patents

Composition de peinture anticorrosion, revêtement anticorrosion et procédé destiné à empêcher la corrosion d'un matériau de base Download PDF

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WO2014136752A1
WO2014136752A1 PCT/JP2014/055398 JP2014055398W WO2014136752A1 WO 2014136752 A1 WO2014136752 A1 WO 2014136752A1 JP 2014055398 W JP2014055398 W JP 2014055398W WO 2014136752 A1 WO2014136752 A1 WO 2014136752A1
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composition
anticorrosion
coating
coating composition
coating film
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PCT/JP2014/055398
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English (en)
Japanese (ja)
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加藤　修
友久 住田
中村　直哉
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中国塗料株式会社
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Priority to JP2015504318A priority Critical patent/JP6033399B6/ja
Priority to EP14759866.8A priority patent/EP2966134B1/fr
Priority to US14/761,831 priority patent/US20150361271A1/en
Priority to CN201480012710.4A priority patent/CN105008471B/zh
Priority to KR1020157023779A priority patent/KR101752581B1/ko
Publication of WO2014136752A1 publication Critical patent/WO2014136752A1/fr
Priority to PH12015501991A priority patent/PH12015501991A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • B05D7/148—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies using epoxy-polyolefin systems in mono- or multilayers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
    • C09D5/084—Inorganic compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/45—Anti-settling agents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/48—Stabilisers against degradation by oxygen, light or heat
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2504/00—Epoxy polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/267—Magnesium carbonate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3045—Sulfates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica

Definitions

  • the present invention relates to an anticorrosion coating composition, an anticorrosion coating film, and a method for preventing corrosion of a substrate, and more particularly, an anticorrosion coating composition capable of forming an anticorrosion coating film having excellent adhesion and corrosion resistance to a metal substrate.
  • the present invention relates to a product, an anticorrosion coating film formed from the composition, and a metal substrate anticorrosion method using the composition.
  • an anticorrosion coating composition is applied so as to form an anticorrosion coating having a thickness of several hundred to several thousand ⁇ m on the surface of the steel plate or the like, and the surface of the steel plate or the like is shielded by the anticorrosion coating. Corrosion of the steel sheet or the like is prevented by preventing contact between the steel sheet or the like and oxygen, salt, water vapor or the like.
  • an epoxy anticorrosion paint composition is used as the anticorrosion paint composition.
  • an amide wax-type rocking agent is used as a sagging inhibitor / antisettling agent (thixotropic agent).
  • Anticorrosive coating compositions containing modifiers have been used.
  • the anticorrosion coating film obtained from this composition is excellent in adhesion to the surface of a substrate such as a steel structure and anticorrosion property under normal construction conditions.
  • the epoxy anticorrosive coating composition includes a coating composition containing a fatty acid amide wax-based thixotropic agent (Patent Document 1), and the thixotropic agent includes fatty acid amide wax, oxidized polyethylene wax, and organic bentonite.
  • the coating composition used together (Patent Documents 2 and 3) is disclosed.
  • an epoxy anticorrosive coating composition using only oxidized polyethylene wax without using fatty acid amide wax as a thixotropic agent is also disclosed (Patent Document 4).
  • anti-corrosion coating is applied.
  • an epoxy anticorrosive coating composition is usually used, and in order to form an anticorrosive coating film having a sufficient film thickness, the coating composition containing an amide wax thixotropic agent is applied, After drying, the coating composition is further applied thereon and dried to form an anticorrosion coating (twice coating).
  • the adhesion between the coating film (or anticorrosion coating film) formed in the second time is important.
  • spray coating is often used.
  • the spray dust tends to adhere to a surface different from the surface currently coated, for example, the floor surface.
  • the first coating film is formed on a part (A), and the coating film is not dried or dried while other The first coating may be formed on part (B), but when forming the coating on part (B), spray dust (or dry) on the coating formed on part (A) The composition which becomes spray dust may adhere.
  • the spray dust since the spray dust is partially taken into the surface of the coating film until the coating film formed on the part (A) is dried, the second coating is applied to the part (A). When doing so, the spray dust adhering to the coating surface cannot be easily removed.
  • the inventors of the present invention have used the conventional anti-corrosion coating composition such as the coating composition described in the above-mentioned patent document, and while performing spray coating, the spray dust as described above is generated, and the spray dust is generated.
  • the spray dust is generated.
  • the composition that becomes spray dust may adhere to the floor surface of the ballast tank.
  • the vapor of the solvent contained in the coating composition tends to stay in the vicinity of the floor surface. Therefore, the composition adhering to the floor surface or the like tends to be dried in a solvent atmosphere. It has been found that the spray dust generated in this case tends to significantly reduce the adhesion of the film formed thereon.
  • composition described in Patent Document 4 cannot be applied to a part that is required to form a thick film having a dry film thickness of 100 ⁇ m or more. It was necessary to change the composition of things.
  • the subject of this invention is the anticorrosion coating composition for forming the anticorrosion coating film of 100 micrometers or more of dry film thickness, Comprising: An anti-corrosion coating composition with excellent anti-corrosion properties, and even if it adheres as spray dust to an object to be coated, it is difficult to reduce the adhesion of the film formed on the object to be coated (coating object). It is to provide a coating composition.
  • an anticorrosion containing an epoxy resin, a curing agent, a silane coupling agent, an oxidized polyethylene wax and an extender pigment, and substantially free of fatty acid amide wax As a result of intensive studies on the method for solving the above problems, the present inventors have found that an anticorrosion containing an epoxy resin, a curing agent, a silane coupling agent, an oxidized polyethylene wax and an extender pigment, and substantially free of fatty acid amide wax.
  • the present inventors have found that the above-mentioned problems can be solved by the coating composition, and have completed the present invention.
  • the configuration of the present invention is as follows.
  • the oxide polyethylene wax (D) is contained in an amount of 0.01 to 3% by weight (nonvolatile content) with respect to 100% by weight of the nonvolatile content of the anticorrosion coating composition, according to [1] or [2] Anticorrosion paint composition.
  • the anticorrosion coating composition according to any one of [1] to [5], wherein the silane coupling agent (C) is an epoxy group-containing alkoxysilane compound. [7] In any one of [1] to [6], the silane coupling agent (C) is contained in an amount of 0.01 to 10 parts by weight with respect to 100 parts by weight (nonvolatile content) of the anticorrosive coating composition.
  • the anticorrosion coating composition as described.
  • the extender pigment (E) includes at least one pigment selected from the group consisting of silica, barium sulfate, calcium carbonate, talc, barite powder, dolomite and feldspar, and a flat pigment (F).
  • the anticorrosion coating composition according to any one of [1] to [7].
  • a substrate anticorrosion method comprising a step of applying the anticorrosion coating composition according to any one of [1] to [9] on a substrate.
  • an anti-corrosion coating composition having excellent adhesion and anti-corrosion properties to a substrate, and even if it adheres as spray dust to an object to be coated, Thus, it is possible to obtain an anticorrosive coating composition that hardly lowers the adhesion of the coating.
  • the anticorrosion coating composition of the present invention is excellent in adhesion to a substrate even when a thick film having a dry film thickness of 100 ⁇ m or more is formed. It can be formed easily.
  • an anticorrosive coating film having a sufficient film thickness can be easily formed by airless spraying or the like on a portion where a thick anticorrosion coating film such as a ballast tank needs to be formed.
  • FIG. 1 is a schematic view for explaining an adhesion test in Examples.
  • the anticorrosive coating composition of the present invention (hereinafter also simply referred to as “the composition of the present invention”) comprises an epoxy resin (A), a curing agent (B), a silane coupling agent (C), and an oxidized polyethylene wax (D). And an anticorrosive coating composition for forming an anticorrosive coating film having a dry film thickness of 100 ⁇ m or more, containing an extender pigment (E) and substantially free of fatty acid amide wax.
  • the composition of the present invention contains these (A) to (E) and does not substantially contain a fatty acid amide wax, and thus is an anticorrosion coating composition having excellent adhesion to a substrate and anticorrosion, Even if it adheres as spray dust to the object to be coated, it is a composition that hardly reduces the adhesion of the film formed thereon to the object to be coated.
  • spray coating is applied to narrow parts such as ballast tanks, there may be places where spray patterns overlap, and an anticorrosion coating film about three times the target film thickness may be formed.
  • a thick film thin film having a dry film thickness of 300 ⁇ m or more
  • sagging of the composition is less likely to occur during coating, and the thick film can be easily formed.
  • the composition of the present invention is an anticorrosive paint used for forming thick films of about 100 ⁇ m or more, for ship structures such as ballast tanks, for spray coating, and for the conditions where the spray dust of the composition of the present invention adheres. It is suitably used as a composition.
  • the conditions under which the spray dust of the composition of the present invention adheres are not particularly limited as long as the following spray dust is formed from the composition of the present invention.
  • a condition in which the coating composition adheres to a location different from the location where the coating is currently applied the location where the coating is desired
  • spray coating large steel structures such as ships, land structures, bridges, etc.
  • there must be a condition that there is a place to be painted on the floor surface 1 m or more below the spray coating location examples of the coating environment include conditions where the temperature of 10 to 40 ° C. and the humidity of 85% or less easily evaporates the solvent that can be contained in the composition.
  • Spray dust in the present invention refers to a location different from the location where the coating composition is currently applied (location to be applied), for example, a floor surface when a wall surface or a ceiling surface is applied.
  • the coating composition adhering to is dried.
  • Such spray dust usually adheres to a part away from a currently applied part (a part to be applied) to some extent when spray coating the coating composition.
  • spray dust that causes a decrease in the adhesion of the film to the object to be coated tends to occur when an anticorrosive coating composition that requires the formation of a thick film is used. This is because the anticorrosion coating composition that requires the formation of a thick film does not sag when the thick film is formed, that is, the composition has excellent adhesion to the substrate.
  • the fatty acid amide wax is blended as a sagging inhibitor / antisettling agent (thixotropic agent) in response to this requirement.
  • the “coating film” refers to a film that has not been dried or completely dried after the anticorrosion coating composition is applied
  • the “anticorrosion coating film” refers to a coating of the anticorrosion coating composition. Then, it means a film after drying and curing
  • the “film” means a film (including dried and undried) formed from a coating composition (including an anticorrosive coating composition).
  • “twice coating” refers to coating the composition of the present invention to form a coating film, followed by drying and curing as necessary, and further coating the same composition thereon.
  • Topic coating refers to coating on the anticorrosive coating film of the present invention a composition different from that formed the coating film.
  • composition of the present invention is preferably a two-component composition prepared by mixing a main ingredient component and a curing agent component from the viewpoint of storage stability and the like.
  • the epoxy resin (A) is not particularly limited, and examples thereof include non-tar epoxy resins described in JP-A-11-343454 and JP-A-10-259351.
  • Examples of the epoxy resin (A) include polymers or oligomers containing two or more epoxy groups in the molecule, and polymers or oligomers generated by a ring-opening reaction of the epoxy groups.
  • Examples of such epoxy resins include bisphenol type epoxy resins, glycidyl ester type epoxy resins, glycidyl amine type epoxy resins, phenol novolac type epoxy resins, cresol type epoxy resins, dimer acid-modified epoxy resins, aliphatic epoxy resins, and alicyclic groups.
  • An epoxy resin, an epoxidized oil type epoxy resin, etc. are mentioned.
  • bisphenol-type epoxy resins are preferable, bisphenol A-type and bisphenol F-type epoxy resins are more preferable, and bisphenol-type epoxy resins are more preferable from the viewpoint that an anticorrosion coating having excellent adhesion to a substrate can be formed.
  • a type epoxy resin is particularly preferred.
  • Examples of such an epoxy resin (A) include epichlorohydrin-bisphenol A epoxy resin (bisphenol A diglycidyl ether type); epichlorohydrin-bisphenol AD epoxy resin; epichlorohydrin and bisphenol F (4,4′-methylenebisphenol).
  • Obtained bisphenol F type epoxy resin epoxy novolac resin; alicyclic epoxy resin obtained from 3,4-epoxyphenoxy-3 ′, 4′-epoxyphenylcarboxymethane, etc .; epichlorohydrin-bisphenol A on the benzene ring in the epoxy resin Brominated epoxy resin in which at least one of the bonded hydrogen atoms is substituted with a bromine atom; Aliphatic epoxy resin obtained from epichlorohydrin and aliphatic dihydric alcohol; Epichlor Dorin and tri multifunctional epoxy resin obtained from the (hydroxyphenyl) methane and the like.
  • bisphenol A type epoxy resins that are particularly preferably used include bisphenol A diglycidyl ether, bisphenol A polypropylene oxide diglycidyl ether, bisphenol A ethylene oxide diglycidyl ether, hydrogenated bisphenol A diglycidyl ether, and hydrogenated bisphenol A propylene oxide diester.
  • polycondensation products such as bisphenol A type diglycidyl ether such as glycidyl ether.
  • the epoxy resin (A) may be synthesized by a conventionally known method or may be a commercially available product.
  • As a commercially available product “E028” (manufactured by Akira Ohtake Shin Chemical Co., Ltd., bisphenol A diglycidyl ether resin, epoxy equivalent of 180 to 190, viscosity of 12,000 to 15,000 mPa ⁇ s / 25 as a liquid at room temperature.
  • JER-834" Mitsubishi Chemical Corporation, bisphenol A type epoxy resin, epoxy equivalent 230-270
  • E-834-85X Otake Akira Shin Chemical Co., Ltd.
  • Manufactured xylene solution of bisphenol A type epoxy resin (834 type epoxy resin solution), epoxy equivalent of about 300), etc.
  • JER1001 Mitsubishi Chemical Corporation, bisphenol A type epoxy resin, epoxy equivalent 450-500
  • E-001-75 Otake Akira Shin Chemical Co., Ltd., bisphenol
  • the epoxy resin (A) can be used alone or in combination of two or more.
  • the epoxy resin (A) is preferably liquid or semi-solid at room temperature (temperature of 15 to 25 ° C., the same shall apply hereinafter) from the viewpoint of obtaining a composition having excellent adhesion to the substrate.
  • the epoxy equivalent of the epoxy resin (A) is preferably 150 to 1000, more preferably 150 to 600, and particularly preferably 180 to 500 from the viewpoint of anticorrosion.
  • the weight average molecular weight measured by GPC gel permeation chromatograph of the epoxy resin (A) is not generally determined depending on the coating curing conditions (eg, normal dry coating or baking coating) of the resulting composition. However, the molecular weight is preferably 350 to 20,000.
  • the epoxy resin (A) is preferably contained in the composition of the present invention in an amount of 5 to 40% by weight, more preferably 10 to 30% by weight.
  • the composition of the present invention is a two-component composition comprising a main component and a curing agent component
  • the epoxy resin (A) is included in the main component, and the main component It is desirable that the component is contained in an amount of preferably 5 to 80% by weight, more preferably 5 to 50% by weight.
  • the curing agent (B) is not particularly limited, and examples thereof include amine curing agents and acid anhydride curing agents, but amine curing such as aliphatic, alicyclic, aromatic, and heterocyclic systems. Agents are preferred.
  • Examples of the aliphatic amine curing agent include alkylene polyamines and polyalkylene polyamines.
  • alkylene polyamine examples include, for example, the formula: H 2 N—R 1 —NH 2 (R 1 is a divalent hydrocarbon group having 1 to 12 carbon atoms, and any hydrogen atom of the hydrocarbon group is carbon And may be substituted with a hydrocarbon group of the number 1 to 10.
  • Specific examples include methylenediamine, ethylenediamine, 1,2-diaminopropane, 1,3-diaminopropane, 1,4-diaminobutane, 1,5-diaminopentane, 1,6-diaminohexane, 1,7-diaminoheptane, 1,8-diaminooctane, 1,9-diaminononane, 1,10-diaminodecane, trimethylhexa And methylene diamine.
  • polyalkylene polyamine examples include the formula: H 2 N— (C m H 2m NH) n H (m is an integer of 1 to 10, n is 2 to 10, preferably an integer of 2 to 6
  • aliphatic amine curing agents include tetra (aminomethyl) methane, tetrakis (2-aminoethylaminomethyl) methane, 1,3-bis (2′-aminoethylamino) propane, triethylene-bis ( Examples include trimethylene) hexamine, bis (3-aminoethyl) amine, bis (hexamethylene) triamine, and bis (cyanoethyl) diethylenetriamine.
  • alicyclic amine curing agent examples include 1,4-cyclohexanediamine, 4,4′-methylenebiscyclohexylamine, 4,4′-isopropylidenebiscyclohexylamine, norbornanediamine, bis (aminomethyl).
  • aromatic amine curing agent examples include bis (aminoalkyl) benzene, bis (aminoalkyl) naphthalene, and aromatic polyamine compounds having two or more primary amino groups bonded to the benzene ring.
  • examples of the aromatic amine curing agent include o-xylylenediamine, m-xylylenediamine (MXDA), p-xylylenediamine, phenylenediamine, naphthylenediamine, diaminodiphenylmethane, and diaminodiethyl.
  • MXDA m-xylylenediamine
  • p-xylylenediamine p-xylylenediamine
  • phenylenediamine phenylenediamine
  • naphthylenediamine diaminodiphenylmethane
  • diaminodiethyl diaminodiethyl
  • Phenylmethane 2,2-bis (4-aminophenyl) propane, 4,4′-diaminodiphenyl ether, 4,4′-diaminobenzophenone, 4,4′-diaminodiphenyl ether, 4,4′-diaminodiphenyl sulfone, 2 , 2'-dimethyl-4,4'-diaminodiphenylmethane, 2,4'-diaminobiphenyl, 2,3'-dimethyl-4,4'-diaminobiphenyl, 3,3'-dimethoxy-4,4'-diamino Biphenyl, bis (aminomethyl) naphthalene, bis (aminoethyl) naphthalene And the like.
  • heterocyclic amine curing agent examples include N-methylpiperazine, morpholine, 1,4-bis- (3-aminopropyl) -piperazine, piperazine-1,4-diazacycloheptane, 1- ( 2′-aminoethylpiperazine), 1- [2 ′-(2 ′′ -aminoethylamino) ethyl] piperazine, 1,11-diazacycloeicosane, 1,15-diazacyclooctacosane and the like.
  • amine curing agent for example, amines (amine compounds) described in JP-B-49-48480 can be used.
  • amine curing agent examples include diethylaminopropylamine and polyetherdiamine.
  • examples of the amine curing agent include a modified product of the above-described amine curing agent, such as polyamide, polyamide amine (polyamide resin), amine adduct with an epoxy compound, Mannich compound (eg, Mannich modified polyamide amine), and Michael adduct. , Ketimine, aldimine, phenalkamine and the like.
  • the curing agent (B) may be obtained by synthesis by a conventionally known method or may be a commercially available product.
  • commercially available products include aliphatic polyamines “ACI Hardener K-39” (manufactured by PTI Japan), polyamidoamines “PA-66”, “PA-23” and “PA-290 (A ”” (Both manufactured by Otake Akira Shin Chemical Co., Ltd.), modified polyamine “MAD-204 (A)” (produced by Otake Akira Shin Chemical Co., Ltd.), Mannich modified polyamidoamine “Adeka Hardener EH- 342W3 "(manufactured by ADEKA Co., Ltd.),” Sanmide CX-1154 "(manufactured by Sanwa Chemical Co., Ltd.), a Mannich-modified aliphatic polyamine, and" Cardlight NC556X80 "(manufactured by Cardlight), a phenorcamine adduct. Is mentioned.
  • Examples of the acid anhydride curing agent include phthalic anhydride, tetrahydrophthalic anhydride, methyltetrahydrophthalic anhydride, 3,6-endomethylenetetrahydrophthalic anhydride, hexachloroendomethylenetetrahydrophthalic anhydride, methyl-3,6- Examples include endomethylenetetrahydrophthalic anhydride.
  • the curing agent (B) can be used alone or in combination of two or more.
  • the active hydrogen equivalent of the amine curing agent is preferably 50 to 1000, more preferably 80 to 400 from the viewpoint of corrosion resistance and the like.
  • the curing agent (B) and the epoxy resin (A) have an equivalent ratio (amount of curing agent used / active hydrogen equivalent) / (amount of epoxy resin used / epoxy equivalent), The amount is preferably 0.3 to 1.5, more preferably 0.5 to 1.0.
  • the curing agent (B) is included in the curing agent component.
  • This curing agent component is preferably prepared so that the non-volatile content (solid content) is 50 to 100%.
  • the viscosity measured with an E-type viscometer at that time is easy to handle and coat. From the standpoint of superiority, it is preferably 100,000 mPa ⁇ s / 25 ° C. or less, more preferably 50 to 10,000 mPa ⁇ s / 25 ° C.
  • the composition of the present invention preferably contains a silane coupling agent (C).
  • a silane coupling agent (C) may be used individually by 1 type, and may be used in combination of 2 or more type.
  • the silane coupling agent (C) is not particularly limited, and a conventionally known silane coupling agent (C) can be used.
  • the silane coupling agent (C) has at least two functional groups in the same molecule and has improved adhesion to the substrate.
  • the compound is preferably a compound that can contribute to the reduction of the viscosity of the compound, and is represented by the formula: X—Si (OR) 3 [X is a functional group capable of reacting with an organic substance (eg, amino group, vinyl group, epoxy group, mercapto Group, a halo group, or a hydrocarbon group containing these groups, etc.
  • an ether bond or the like may be present in this hydrocarbon group) or an alkyl group
  • OR is a hydrolyzable group (Example: methoxy group, ethoxy group) It is more preferable that it is a compound represented by this.
  • the X group is an epoxy group
  • the epoxy group-containing alkoxysilane compound can not only further improve the adhesion of the resulting anticorrosion coating to the substrate, but also the salt resistance of the resulting anticorrosion coating.
  • the anticorrosion properties such as aqueous properties can be improved, the viscosity of the composition of the present invention can be lowered, and the coating workability is improved, which is preferable.
  • preferable silane coupling agents include “KBM403” ( ⁇ -glycidoxypropyltrimethoxysilane, manufactured by Shin-Etsu Chemical Co., Ltd.), “Syra Ace S-510” (manufactured by JNC Corporation), and the like. Is mentioned.
  • the amount of the silane coupling agent (C) is preferably 0.01 to 10 parts by weight, more preferably 0. 0 parts by weight with respect to 100 parts by weight (nonvolatile content) of the anticorrosive coating composition. 05 to 10 parts by weight, more preferably 0.3 to 5 parts by weight.
  • the composition containing the silane coupling agent (C) in such an amount is used, the performance of the anticorrosion coating such as adhesion to the substrate and anticorrosion is improved, and the viscosity of the composition of the present invention is lowered. As a result, painting workability is improved.
  • composition of the present invention contains oxidized polyethylene wax (D), it has excellent adhesion to a substrate even when a thick film having a dry film thickness of 100 ⁇ m or more is formed, and sagging of the composition occurs during coating. It is difficult to form a thick film that can be easily formed.
  • the composition of the present invention contains the oxidized polyethylene wax (D) and the (A) to (C) and (E), such an effect is more exhibited.
  • Examples of the oxidized polyethylene wax (D) include resins obtained by oxidizing polyethylene and introducing polar groups. Such oxidized polyethylene wax (D) may be synthesized by a conventionally known method or may be a commercially available product. Examples of commercially available products include “Disparon 4200-20” manufactured by Enomoto Kasei Co., Ltd., “ASA D-120” manufactured by Ito Seiyaku Co., Ltd., and the like.
  • the oxidized polyethylene wax (D) can be used alone or in combination of two or more.
  • the average molecular weight of the oxidized polyethylene wax (D) measured by the solution viscosity measuring method is preferably 1000 to 5000, more preferably 2000 to 3500. When the average molecular weight is in the above range, a composition having excellent sagging-preventing properties and coating workability can be obtained.
  • the acid value of the oxidized polyethylene wax (D) is preferably in the range of 10 to 40 KOHmg / g. It exists in the tendency for the anticorrosion coating film which is excellent in coating-film physical property to be obtained because an acid value exists in the said range.
  • the content (nonvolatile content) of the oxidized polyethylene wax (D) in the composition of the present invention is preferably 0.01 to 3 parts by weight with respect to 100 parts by weight of the nonvolatile content in the composition of the present invention. More preferably, it is 0.2 to 2.0 parts by weight, and still more preferably 0.5 to 1.8 parts by weight.
  • the composition of the present invention contains the above (A) to (C) and (E), and further contains the oxidized polyethylene wax (D) in the above amount, so that it can be dried without substantially containing the fatty acid amide wax.
  • a thick film having a film thickness of 100 ⁇ m or more is formed, the composition is excellent in adhesion to a substrate, and the composition can easily form a thick film in which sagging of the composition does not easily occur during coating.
  • the composition of the present invention includes the extender pigment (E), thereby forming an anticorrosion coating film having excellent corrosion resistance, salt water resistance, high temperature moisture resistance, and the like as well as cost advantages of the obtained composition. Can do.
  • the extender pigment (E) may be used alone or in combination of two or more.
  • the extender pigment (E) include silica, barium sulfate, calcium carbonate, dolomite, feldspar, barite powder, talc, and flat pigment (F).
  • the composition of the present invention is capable of forming an anticorrosion coating excellent in anticorrosion properties, salt water resistance, high temperature moisture resistance, and the like, and is therefore silica, barium sulfate, calcium carbonate, talc, dolomite, and feldspar. It is preferable to include at least one pigment selected from the group consisting of: and a flat pigment (F).
  • the said flat pigment (F) may be used individually by 1 type, and may be used in combination of 2 or more type.
  • the flat pigment (F) a pigment having an average flake diameter of 30 to 200 ⁇ m and an average aspect ratio of 30 to 100 as measured with a particle size distribution measuring device is used. It is preferable from the viewpoints of improvement of creep, reduction of creep properties, relaxation of internal stress and the like.
  • the flat pigment (F) include mica, glass flakes and the like, and mica is preferable from the viewpoints of being able to form an anticorrosive coating film that is inexpensive, excellent in availability, and more excellent in the above effects.
  • a high aspect ratio mica having an aspect ratio of 30 to 90 is preferable from the viewpoint of improving the swelling resistance of the resulting anticorrosion coating film, reducing creep properties, and relaxing internal stress.
  • Specific mica includes “Suzolite Mica 200HK” (Kuraray Trading Co., Ltd., aspect ratio: 40 to 60).
  • the content of the extender pigment (E) is such that the anticorrosion coating having excellent anticorrosion properties and physical properties of the coating can be obtained, and the epoxy resin (A), the curing agent (B), and the silane.
  • the amount is preferably 5 to 80 parts by weight, more preferably 10 to 70 parts by weight based on 100 parts by weight (nonvolatile content) of the coupling agent (C), oxidized polyethylene wax (D) and extender pigment (E).
  • the flat pigment (F) is blended in the composition of the present invention, the blending amount of the flat pigment (F) improves the performance of the anticorrosion coating film such as water corrosion resistance and flex resistance.
  • the amount is preferably 1 to 40 parts by weight, more preferably 3 to 20 parts by weight with respect to 100 parts by weight of the nonvolatile content of the composition of the present invention.
  • the composition of the present invention is substantially free of fatty acid amide wax.
  • fatty acid amide waxes include amide waxes synthesized from vegetable oil fatty acids and amines.
  • the formed anticorrosion coating In applications where anticorrosion properties are required, particularly when an anticorrosion coating composition is used for a steel structure constituting a ship, the formed anticorrosion coating must have a film thickness of 100 ⁇ m or more, and an overlapping portion of spray patterns In consideration of the occurrence of this, sagging prevention is required to the extent that an anticorrosive coating film having a thickness of 300 ⁇ m or more can be formed.
  • the anticorrosion coating film having such a thickness is formed on a base material such as a wall surface or a ceiling surface, for example, the thickness of the anticorrosion coating is easy to sag during coating, excellent anticorrosion properties, and a uniform film thickness. It was not easy to obtain an anticorrosion coating film.
  • the anticorrosive coating composition for forming the anticorrosive coating film having such a thickness does not sag during coating, that is, in order to obtain a composition having excellent adhesion to the substrate.
  • Stoppers and anti-settling agents have been used.
  • Various compounds are known as the anti-sagging agent and anti-settling agent (thixotropic agent), but fatty acid amide waxes have been used from the viewpoint of excellent anti-sagging effect.
  • fatty acid amide waxes When forming a thick anticorrosion coating film, it was necessary to use a fatty acid amide wax.
  • the cause that the spray dust formed from the anticorrosive coating composition containing the conventional fatty acid amide wax reduces the adhesion of the film formed thereon to the object to be coated I found out. Accordingly, when forming a thick anticorrosive coating, it is preferable to use a fatty acid amide wax, but the sprayed dust of the anticorrosive coating composition containing the fatty acid amide wax is coated on the film to be formed thereon.
  • the composition of the present invention preferably contains no fatty acid amide wax. Since the composition of the present invention contains the components (A) to (E), a thick anticorrosive coating film can be formed without substantially containing a fatty acid amide wax.
  • composition of the present invention does not substantially contain a fatty acid amide wax.
  • composition of the present invention in addition to the above (A) to (E), other anti-sagging / precipitating agents, solvents, plasticizers, curing accelerators, coloring pigments, inorganic dehydrating agents, if necessary You may mix
  • blend (stabilizer), an antifoamer, an antifouling agent, etc. in the range which does not impair the objective of this invention.
  • the other anti-sagging / precipitating agent (compound other than oxidized polyethylene wax (D) and fatty acid amide wax) imparts thixotropy to the composition of the present invention, and adheres the composition to the substrate. Can be improved.
  • the oxidized polyethylene wax (D) is also an anti-sagging / anti-settling agent, but the composition of the present invention may further contain other anti-sagging / anti-settling agents as required.
  • the other anti-sagging / precipitating agent is not particularly limited, and examples thereof include organic thixotropic agents and inorganic thixotropic agents.
  • the other anti-sagging / sedimentation agents may be used alone or in combination of two or more.
  • organic thixotropic agent examples include a hydrogenated castor oil type, a vegetable oil polymerized oil type, a surfactant type thixotropic agent, or a thixotropic agent using two or more of these in combination.
  • Examples of the inorganic thixotropic agent include finely divided silica (usually, when measured by a scanning electron microscope observation method, the average particle diameter of primary particles is 40 nm or less, and the specific surface area is measured by the BET method. 50-410 m 2 / g silica), bentonite, silica treated with a silane compound, etc., bentonite treated with a quaternary ammonium salt (organic bentonite), ultrafine surface treated calcium carbonate, or , And mixtures thereof.
  • finely divided silica usually, when measured by a scanning electron microscope observation method, the average particle diameter of primary particles is 40 nm or less, and the specific surface area is measured by the BET method. 50-410 m 2 / g silica
  • bentonite silica treated with a silane compound, etc.
  • bentonite treated with a quaternary ammonium salt organic bentonite
  • ultrafine surface treated calcium carbonate or , And mixtures thereof
  • silica fine powder pulverized by a dry method for example, product name: Aerosil 300 manufactured by Nippon Aerosil Co., Ltd.], fine powder silica without surface treatment [for example, Japan Aerosil Co., Ltd., trade name: Aerosil 200], fine powder obtained by modifying silica fine powder with hexamethyldisilazane [for example, Nippon Aerosil Co., Ltd., trade name: Aerosil RX300], Silica fine powder is polydimethyl Fine powder modified with siloxane [for example, Nippon Aerosil Co., Ltd., trade name: Aerosil RY300], hydrophobic fine powder silica obtained by treating fine powder silica with dimethyldichlorosilane (Nihon Aerosil Co., Ltd., trade name: Aerosil R972) And organic bentonite (manufactured by Elementis Specialties, Inc., trade name: Benton SD-2).
  • a dry method for example, product name: Aerosil
  • fine silica including those obtained by treating the surface with a silane compound or the like
  • bentonite including those whose surfaces are treated with a quaternary ammonium salt or the like
  • hydrophobic fine powder silica obtained by treating fine powder silica with dimethyldichlorosilane in combination with organic bentonite.
  • oxidized polyethylene wax (D) is 1.2 parts by weight (nonvolatile content) or less in the coating composition
  • hydrophobic fine silica and organic bentonite are used in combination as an inorganic thixotropic agent. It is more preferable.
  • the blending amount (non-volatile content) of the other anti-sagging / anti-settling agent from the viewpoint of coating workability, etc.
  • the amount is preferably 0.1 to 4 parts by weight, more preferably 0.1 to 2 parts by weight per 100 parts by weight of the non-volatile content of the composition.
  • the total content (nonvolatile content) of the oxidized polyethylene wax (D) and other anti-sagging and anti-settling agents in the composition of the present invention is excellent in balance in anti-sagging properties and coating workability. Is preferably 0.5 to 5 parts by weight, more preferably 0.7 to 3 parts by weight with respect to 100 parts by weight of the nonvolatile content of the composition of the present invention.
  • the weight ratio (non-volatile content) of the content (nonvolatile content) of the oxidized polyethylene wax (D) and the other anti-sagging / precipitating agent in the composition of the present invention (of oxidized polyethylene wax (D)) Content (non-volatile content):
  • the other anti-sagging / precipitating agent content (non-volatile content) is preferably 15:85 to 85:15, more preferably 25:75 to 75:25 (However, the total non-volatile content of the oxidized polyethylene wax (D) and other anti-sagging and anti-settling agents is 100).
  • the solvent is not particularly limited, and a conventionally known solvent can be used.
  • a conventionally known solvent can be used.
  • xylene, toluene, methyl isobutyl ketone, methoxypropanol, methyl ethyl ketone, butyl acetate, butanol, isopropyl alcohol, propylene glycol monomethyl ether (PGM), etc. Is mentioned.
  • These solvents may be used alone or in combination of two or more.
  • the blending amount of the solvent is not particularly limited, and may be appropriately adjusted according to the coating method when the composition of the present invention is coated. Considering the paintability of the product, it is desirable that the non-volatile content of the composition of the present invention is preferably contained in an amount such that it is 55 to 98% by weight, more preferably 65 to 95% by weight.
  • the solvent when the composition of the present invention is spray-coated, the solvent preferably has a non-volatile concentration of 55 to 95% by weight, more preferably 65 to 95% from the viewpoint of paintability and the like. It is desirable that it be contained in an amount such that it is 90% by weight.
  • the composition of the present invention preferably contains a plasticizer from the viewpoint of improving the flexibility and weather resistance of the resulting anticorrosion coating film.
  • the said plasticizer may be used individually by 1 type, and may be used in combination of 2 or more type.
  • liquid hydrocarbon resins such as low boiling fractions obtained by thermally decomposing naphtha, petroleum resins solid at room temperature, xylene resins, coumarone indene resins, etc. Is mentioned. Specific examples include liquid hydrocarbon resins and flexibility imparting resins described in JP-A-2006-342360.
  • a liquid hydrocarbon resin, a hydroxyl group-containing petroleum resin, a xylene resin, and a coumarone indene resin that are solid at room temperature are preferable.
  • liquid hydrocarbon resins include “Nesiles EPX-L”, “Nesiles EPX-L2” (hereinafter, NEVCIN / phenol-modified hydrocarbon resin), “HILENOL PL-1000S” (manufactured by KOLON Chemical / Liquid hydrocarbon resins) and petroleum-based resins that are solid at room temperature include “Neopolymer E-100”, “Neopolymer K-2”, “Neopolymer K3” (Shin Nippon Petrochemical Co., Ltd.) (Manufactured by C9 series hydrocarbon resin) and coumarone indene resin are commercially available as “NOVARES CA 100” (Rutgers Chemicals AG), and as xylene resin as “Nicanol Y-51” (Mitsubishi Gas Chemical ( Etc.).
  • the blending amount of the plasticizer is the composition 100 of the present invention from the viewpoint that an anticorrosive coating film having excellent weather resistance and crack resistance is obtained.
  • the amount is preferably 1 to 50 parts by weight, more preferably 3 to 30 parts by weight with respect to parts by weight.
  • the composition of the present invention contains a curing accelerator capable of contributing to adjustment of the curing speed, particularly acceleration.
  • the curing accelerator include tertiary amines.
  • the said hardening accelerator may be used individually by 1 type, and may be used in combination of 2 or more type.
  • triethanolamine, dialkylaminoethanol, triethylenediamine [1,4-diazacyclo (2,2,2) octane], 2,4,6-tri (dimethylaminomethyl) phenol (example: commercial product)
  • curing accelerators are preferably blended in the composition of the present invention in an amount of 0.05 to 2.0% by weight.
  • Color pigment examples include titanium white, red rose, yellow red rose, and carbon black.
  • the said color pigment may be used individually by 1 type, and may be used in combination of 2 or more type.
  • the amount of the color pigment is preferably 0.01 to 20 parts by weight, more preferably 100 parts by weight of the nonvolatile content of the composition of the present invention. Is 0.03 to 10 parts by weight.
  • the extender pigment (E) and the color pigment are pigment volume concentrations in the anticorrosion coating film formed from the composition of the present invention (PVC, volume concentration of the extender pigment (E) and the color pigment in the anticorrosion coating film).
  • PVC volume concentration of the extender pigment (E) and the color pigment in the anticorrosion coating film.
  • the anticorrosion coating film of the present invention is not particularly limited as long as it is formed from the composition of the present invention.
  • a coating film is formed by applying the composition of the present invention on a substrate, and the coating composition is applied. It is preferable that the film is obtained by drying and curing the film.
  • Such anticorrosion coatings have excellent anticorrosion properties such as salt water resistance and high temperature and humidity resistance, and adhere to the substrate and adhere to the substrate even if they adhere as spray dust. It is excellent in the property that it is difficult to lower the properties.
  • the base material is not particularly limited, but is preferably a base material that is required to have anticorrosion properties because the effects of the present invention can be further exhibited.
  • a base material As such a base material, a base material made of steel, non-ferrous metal (zinc, aluminum, stainless steel, etc.) is preferable, and a ship, land structure, bridge or other structure made of these, more preferably a ship structure. is there. Among ship structures, a ballast tank is more preferable.
  • the ballast tank may be provided with an anticorrosion by installing an anode such as zinc or zinc-aluminum.
  • the current density during the anticorrosion is preferably 1 to 10 mA / m 2 .
  • the substrate in order to remove rust, fats and oils, moisture, dust, slime, salt, etc., and to improve the adhesion of the resulting anticorrosive coating film, the substrate surface is treated as necessary (for example, Blasting treatment (ISO8501-1, Sa2) 1/2), power tool treatment, friction method, treatment for removing oil and dust by degreasing) may be used.
  • Blasting treatment ISO8501-1, Sa2 1/2
  • power tool treatment for removing oil and dust by degreasing
  • friction method for removing oil and dust by degreasing
  • a coating material for forming a thin film such as a conventionally known primary anticorrosive coating material (shop primer) or other primer may be applied to the surface of the base material and dried.
  • the method of applying the composition of the present invention on the substrate is not particularly limited, and a conventionally known method can be used without limitation, but it is excellent in workability, productivity, etc., for a large area substrate.
  • spray coating is preferable because it can be easily applied and the effects of the present invention can be further exerted.
  • the composition of the present invention is a two-component composition, the main component and the curing agent component may be mixed and sprayed or the like just before coating.
  • the spray coating conditions may be appropriately adjusted according to the thickness of the anticorrosion coating film to be formed.
  • primary (air) pressure about 0.4 to 0.8 MPa
  • secondary (paint ) Pressure Coating conditions may be set to about 10 to 26 MPa and gun moving speed of about 50 to 120 cm / second.
  • the method for drying and curing the coating film is not particularly limited, and the coating film may be dried and cured by heating at about 5 to 60 ° C. in order to shorten the drying and curing time.
  • the coating film is dried and cured by leaving it in the atmosphere for about 1 to 14 days.
  • the film thickness of the anticorrosion coating film may be 100 ⁇ m or more, and may be appropriately selected according to the desired use, but is preferably 100 to 450 ⁇ m, more preferably 250 to 400 ⁇ m.
  • an anticorrosion coating film having a desired thickness may be formed by a single coating, or twice (if necessary) depending on the anticorrosion properties.
  • An anticorrosive coating film having a desired thickness may be formed by painting. In view of being able to form an anticorrosion coating having excellent anticorrosion properties, it is preferable to form an anticorrosion coating having a thickness in the above-mentioned range by applying twice.
  • the anticorrosion coating film When the anticorrosion coating film is formed on a ship structure such as a ballast tank as a base material, a thickness of about 300 ⁇ m is required.
  • the composition of the present invention has adhesiveness to the base material, specifically, sagging prevention. Therefore, the anticorrosive coating film having such a thickness can be easily formed.
  • the anticorrosion method for the substrate of the present invention is not particularly limited as long as it includes the step of applying the composition of the present invention on the substrate, but the coating film is formed by applying the composition of the present invention on the substrate.
  • a method of preventing corrosion of the substrate by forming the coating film and drying and curing the coating film is preferable.
  • the substrate, coating method, etc. in this method may be the same as those described in the column for the anticorrosion coating film.
  • a conventionally known top coat such as an antifouling paint may be applied on the obtained coating or anticorrosion coating, and dried and cured, depending on the desired application. Good.
  • the anti-corrosion method for the ballast tank is performed as follows. First, the composition of the present invention is spray-coated on the floor surface of the ballast tank (the first coating, a dry film thickness of about 160 ⁇ m), and the obtained coating film is dried or left to dry on the wall or ceiling. The surface is spray coated with the composition of the present invention. At this time, the composition that becomes spray dust adheres to the floor surface by drying, and drying proceeds in a solvent atmosphere. After the coating film on the floor surface is dried, the composition is sprayed again on the floor surface (second coating, dry film thickness of about 160 ⁇ m).
  • the first coating a dry film thickness of about 160 ⁇ m
  • the wall and ceiling surfaces are again spray-coated with the above composition to form an anticorrosion coating having a thickness of about 320 ⁇ m on the floor, wall and ceiling.
  • the anti-corrosion method for such a ballast tank is, as described above, the object to be coated (here, the coating film obtained by the second coating and the dry coating film) formed thereon by spray dust. This is a condition in which the adhesiveness to the dry paint with spray dust obtained by the first coating is likely to be reduced, but such a decrease in adhesiveness is less likely to occur by using the composition of the present invention. On the other hand, when the conventional anticorrosive coating composition is used, this decrease in adhesion is significant.
  • Test plate a blasted steel plate having dimensions of 150 mm ⁇ 70 mm ⁇ 1.6 mm (thickness) has a dry film thickness.
  • the test plate with a coating film was spray-coated so as to have a thickness of about 250 ⁇ m, and the obtained test plate with a coating film was dried in an atmosphere of 23 ° C. and 50% RH for 7 days to prepare a test plate with an anticorrosion coating film.
  • Electrocorrosion resistance test A zinc anode was connected to a test plate with an anticorrosion coating film prepared in the same manner as the salt water resistance test so that the electric current density was 5 mA / m 2 or less, and the test was conducted in 3% salt water at 40 ° C.
  • the appearance of the anticorrosion coating after being immersed for 90 days was visually evaluated according to the following criteria. (Evaluation criteria) ⁇ : No change in swelling, cracking, rust, peeling, or hue. ⁇ : Slight defects (changes) are observed in any of blisters, cracks, rust, peeling, and hue. X: Any of swelling, cracking, rust, peeling, and hue change is clearly recognized.
  • the high temperature and high humidity resistance of the anticorrosion coating was measured according to JIS K-5600 7-2. Specifically, it was performed as follows. Using a test plate with an anticorrosion coating prepared in the same manner as the salt water resistance test, the appearance of the anticorrosion coating after being held in a tester at a temperature of 50 ° C. and a humidity of 95% for 90 days was evaluated according to the following criteria. (Evaluation criteria) ⁇ : No change in swelling, cracking, rust, peeling, or hue. ⁇ : Slight defects (changes) are observed in any of blisters, cracks, rust, peeling, and hue. X: Any of swelling, cracking, rust, peeling, and hue change is clearly recognized.
  • Double-coat adhesion The anti-corrosion coating film was coated twice in accordance with JIS K-5400 8.5.3. Specifically, it was performed as follows. Each of the compositions obtained in the following examples and comparative examples was spray-coated on the test plate so as to have a dry film thickness of about 160 ⁇ m, thereby preparing a test plate with a coating film. The obtained test plate with a coating film was dried in an atmosphere of 23 ° C. and 50% RH for 1 day, and on the obtained test plate with a dry coating film, the same composition as the composition that formed the coating film was obtained. Spray coating was performed so that the dry film thickness was about 160 ⁇ m, and drying was performed in an atmosphere of 23 ° C. and 50% RH for 7 days to obtain a test plate with an anticorrosive coating film having a film thickness of 320 ⁇ m.
  • peeling state (peeling rate) between the anticorrosion coating films was evaluated according to the following criteria. A description will be given along FIG. An X-shaped cut 2 was made on one surface of the anticorrosion coating film of the obtained test plate with the anticorrosion coating film. At this time, the area in the square connecting the four ends of the two cuts of the cut 2 was defined as the cut-in area 3. Then, a cellophane adhesive tape is applied on the X-shaped notch, and one end of the tape is peeled off at an angle close to 90 ° with respect to the surface of the anticorrosive coating, thereby evaluating the peeling state (peeling rate) between the anticorrosive coatings. did.
  • the ratio of the anticorrosive coating film peeled off from the test plate with respect to the area 3 where the cut was made after the tape was peeled was roughly estimated by visual observation. (Evaluation criteria) ⁇ : No peeling at all ⁇ : 1 to 15% or less of the whole peeled off X: The part which exceeds 15% of the whole has peeled.
  • Adhesion on spray dust adhesion surface was carried out in accordance with JIS K-5400 8.5.3. Specifically, the following (6-1) to (6-3) were performed.
  • a test plate having a size of 150 ⁇ 70 ⁇ 1.6 (thickness) mm is placed so that the surface thereof is substantially perpendicular to gravity, and the resulting anticorrosive coating film has a thickness of 160 ⁇ m.
  • Each of the obtained anticorrosion coating compositions was applied to obtain a test plate with a coating film.
  • the same composition as the composition on which the coating film was formed was applied on the coating surface of the obtained test plate with a coating by spray coating from a height of about 3 m above the test plate.
  • a composition that became spray dust by being dried was deposited on about 95% of the surface area.
  • the test plate to which the composition that became the spray dust adhered was dried for one day in an atmosphere of 23 ° C.
  • test plate with a dry coating film On the obtained test plate with a dry coating film, the same composition as the composition on which the anticorrosion coating film was formed was again spray-coated so that the dry film thickness was about 160 ⁇ m, and the temperature was 23 ° C. and 50% RH.
  • a test plate with an anticorrosion coating film having a thickness of about 320 ⁇ m was obtained by drying in an atmosphere for 7 days.
  • the conditions for adhering the composition that becomes the spray dust are conditions for reproducing conditions similar to an example of the condition for adhering the spray dust that may be generated when the composition of the present invention is used in an actual field. .
  • peeling state between the anticorrosive coating films was evaluated according to the following criteria.
  • the numerical value of the following evaluation criteria was estimated similarly to said (5). (Evaluation criteria) ⁇ : No peeling at all ⁇ : 1 to 15% or less of the whole peeled off X: The part which exceeds 15% of the whole has peeled.
  • a test plate having a size of 150 ⁇ 70 ⁇ 1.6 (thickness) mm is placed so that the surface thereof is substantially perpendicular to gravity, and the resulting anticorrosive coating film has a thickness of 160 ⁇ m.
  • Each of the obtained anticorrosion coating compositions was applied to obtain a test plate with a coating film.
  • the same composition as the composition that formed the coating film was applied by spray coating from a height of about 1.5 m above the test plate.
  • a composition that became spray dust by being dried was deposited on about 95% of the surface area of the film.
  • composition Immediately after the composition was deposited, it was obtained in a 60 x 40 x 30 cm (height) cm plastic box with xylene sprayed on the bottom and at a height of 8 cm from the bottom of the box.
  • the test plate to which the composition that became spray dust adhered was left to stand and dried for one day.
  • the conditions for adhering the composition to be the spray dust and the subsequent drying conditions reproduce conditions similar to an example of the conditions for adhering the spray dust that may be generated when the composition of the present invention is used in the actual site. It is a condition for.
  • peeling state between the anticorrosive coating films was evaluated according to the following criteria.
  • the numerical value of the following evaluation criteria was estimated similarly to said (5). (Evaluation criteria) ⁇ : No peeling at all ⁇ : 1 to 15% or less of the whole peeled off X: The part which exceeds 15% of the whole has peeled.
  • ⁇ ⁇ Sagging is 5 mm or more with a dry coating film of 500 ⁇ m, but sagging is less than 5 mm with a drying coating film of 400 ⁇ m.
  • ⁇ Sagging is 5 mm or more when the dried coating film is 400 ⁇ m, but sagging is less than 5 mm when the dried coating film is 300 ⁇ m.
  • X Sagging is 5 mm or more at a dry coating film of 300 ⁇ m.
  • Example 1 As shown in Table 2 below, in a container, 19 parts by weight of epoxy resin (Note 1), 10 parts by weight of petroleum resin (Note 3), 4 parts by weight of liquid petroleum resin (Note 5), 5.5 parts by weight of xylene, butanol 1 part by weight, 1 part by weight of PGM, 1 part by weight of silane coupling agent (Note 6), 23 parts by weight of talc (Note 7), 6 parts by weight of mica (Note 8), 15 parts by weight of potassium feldspar (Note 9), titanium Put 6 parts by weight of white (Note 10), 1.5 parts by weight of yellow petal (Note 11) and 7 parts by weight of oxidized polyethylene wax (Note 14), add glass beads to it, and use a paint shaker These compounding ingredients were mixed. Subsequently, the main ingredient component was prepared by removing the glass beads.
  • Example 2 to 10 and Comparative Examples 5 to 6 A composition was prepared in the same manner as in Example 1 except that the components and amounts to be blended in the main component and the curing agent component were changed as shown in Table 2 below.
  • Anticorrosion coating film 2 X-shaped cut 3: Area with cut

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Epoxy Resins (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

La présente invention concerne une composition de peinture anticorrosion destinée à former un revêtement présentant une épaisseur de film sec d'au moins 100 µm. Cette composition de peinture anticorrosion contient une résine époxy (A), un durcisseur (B), un agent de couplage silane (C), une cire de polyéthylène oxydé (D) et un pigment d'allongement (E) et peut former un revêtement anticorrosion qui excelle en termes d'adhérence sur un matériau de base métallique, de performances anticorrosives et analogues.
PCT/JP2014/055398 2013-03-08 2014-03-04 Composition de peinture anticorrosion, revêtement anticorrosion et procédé destiné à empêcher la corrosion d'un matériau de base WO2014136752A1 (fr)

Priority Applications (6)

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JP2015504318A JP6033399B6 (ja) 2013-03-08 2014-03-04 防食塗料組成物、防食塗膜および基材の防食方法
EP14759866.8A EP2966134B1 (fr) 2013-03-08 2014-03-04 Composition de peinture anticorrosion, revêtement anticorrosion et procédé destiné à empêcher la corrosion d'un matériau de base
US14/761,831 US20150361271A1 (en) 2013-03-08 2014-03-04 Anticorrosive coating composition, anticorrosive coating film, and method for preventing corrosion of substrate
CN201480012710.4A CN105008471B (zh) 2013-03-08 2014-03-04 防腐蚀涂料组合物、防腐蚀涂膜以及基材的防腐蚀方法
KR1020157023779A KR101752581B1 (ko) 2013-03-08 2014-03-04 방식 도료 조성물, 방식 도막 및 기재의 방식방법
PH12015501991A PH12015501991A1 (en) 2013-03-08 2015-09-07 Anti-corrosion paint composition, anti-corrosion coating, and method for preventing corrosion of base material

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WO2015025918A1 (fr) * 2013-08-23 2015-02-26 中国塗料株式会社 Composition et film de revêtement anti-corrosion, et procédé de protection d'un matériau de base contre la corrosion
JP2017025158A (ja) * 2015-07-17 2017-02-02 中国塗料株式会社 防食塗料組成物、防食塗膜、防食塗膜付き基材及びその製造方法
JP2017025159A (ja) * 2015-07-17 2017-02-02 中国塗料株式会社 防食塗料組成物、防食塗膜、防食塗膜付き基材及びその製造方法
JP2017119252A (ja) * 2015-12-28 2017-07-06 中国塗料株式会社 目標膜厚の塗膜の製造方法、塗料組成物、塗膜、塗膜付き基材および膜厚の検査方法
JP2022109477A (ja) * 2021-01-15 2022-07-28 株式会社オリジン プライマー塗料組成物

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SG11201706987XA (en) * 2016-02-12 2017-09-28 Nippon Paint Marine Coatings Co Ltd Anticorrosive paint composition and method for forming dry coating film
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CN113574124B (zh) * 2019-04-12 2022-09-09 中国涂料株式会社 防腐蚀涂料组合物
JP2022031168A (ja) * 2020-08-07 2022-02-18 中国塗料株式会社 防食塗料組成物
CN113698850A (zh) * 2021-09-18 2021-11-26 福州大学 一种耐磨耐腐蚀超疏水复合涂层及其制备方法
EP4299682A1 (fr) * 2022-06-30 2024-01-03 PPG Industries Ohio, Inc. Composition de revêtement à base d'eau pour des revêtements protecteurs résistants à la chaleur

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Publication number Priority date Publication date Assignee Title
WO2015025918A1 (fr) * 2013-08-23 2015-02-26 中国塗料株式会社 Composition et film de revêtement anti-corrosion, et procédé de protection d'un matériau de base contre la corrosion
JPWO2015025918A1 (ja) * 2013-08-23 2017-03-02 中国塗料株式会社 防食塗料組成物、防食塗膜および基材の防食方法
US10273366B2 (en) 2013-08-23 2019-04-30 Chugoku Marine Paints, Ltd. Anticorrosive coating composition, anticorrosive coating film, and method for preventing corrosion of substrate
CN104277346A (zh) * 2014-09-30 2015-01-14 苏州博利迈新材料科技有限公司 一种高透光性农用薄膜及其制备方法
JP2017025158A (ja) * 2015-07-17 2017-02-02 中国塗料株式会社 防食塗料組成物、防食塗膜、防食塗膜付き基材及びその製造方法
JP2017025159A (ja) * 2015-07-17 2017-02-02 中国塗料株式会社 防食塗料組成物、防食塗膜、防食塗膜付き基材及びその製造方法
JP2017119252A (ja) * 2015-12-28 2017-07-06 中国塗料株式会社 目標膜厚の塗膜の製造方法、塗料組成物、塗膜、塗膜付き基材および膜厚の検査方法
JP2022109477A (ja) * 2021-01-15 2022-07-28 株式会社オリジン プライマー塗料組成物

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US20150361271A1 (en) 2015-12-17
CN105008471B (zh) 2017-08-15
CN105008471A (zh) 2015-10-28
KR20150116450A (ko) 2015-10-15
TW201444926A (zh) 2014-12-01
EP2966134A1 (fr) 2016-01-13
EP2966134A4 (fr) 2016-10-26
KR101752581B1 (ko) 2017-06-29
EP2966134B1 (fr) 2017-11-01
PH12015501991A1 (en) 2016-01-11
TWI561593B (en) 2016-12-11
JP6033399B2 (ja) 2016-11-30
JPWO2014136752A1 (ja) 2017-02-09

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